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Finding the Fourth Proportional to 439,891.44, 659,831.40 and 107,470.32

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Solution

The fourth proportional to 439,891.44, 659,831.40 and 107,470.32 is: 161,204.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,891.44 : 659,831.40 = 107,470.32 : x
  2. Step 2: Convert to fraction form
    439,891.44/659,831.40 = 107,470.32/x
  3. Step 3: Cross multiply
    439,891.44x = 659,831.40 × 107,470.32
  4. Step 4: Simplify right side
    439,891.44x = 70,912,291,704.05
  5. Step 5: Solve for x
    x = 70,912,291,704.05/439,891.44
  6. Step 6: Final answer
    x = 161,204.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.